<!--
@WIN-DENY:*
@WIN-ALLOW:EVENT_SYSTEM_ALERT*
@UIA-WIN-DENY:*
@UIA-WIN-ALLOW:SystemAlert*
-->
<!DOCTYPE html>
<html>
<body>
<div id="a">This is an alert</div>
<script>
  function go() {
    document.getElementById('a').setAttribute('role', 'alert');
}
</script>
</body>
</html>
